Mozilla has shown off a recent build of its Firefox OS for mobile devices, demonstrating more of the open source operating system’s features and functions. In a new video on its Firefox YouTube channel, the non-profit organisation shows the browser-centric OS’s built-in Firefox web browser, phone dialer, camera and Gallery image viewer running on a developer phone from Chinese handset manufacturer ZTE.

Looks laggy (granted this is a nightly beta) and like a bad skin over android. Not sure what problem this is solving, but I am glad that someone’s doing cool and interesting things.